Door operating mechanism



v April 16, 1935. v. o. KEYs 1,998,370

DOOR OPERATING MECHANI SM Filed Sept. 15, 1954 2 sheets-sheet 1 t I I m k m 1 l1 I l l l l Q I OQ 5 3 t L. 0| lo' Q G lo; 'o

:L Q l l Y N i ks A g Q x A y v q 'N (Q i Y l l N l I\ V I April 16, 1935. v. o. KEYS DOOR OPERATING MECHANISM 2 Sheets-Sheet 2 Filed Sept'. 15, 1934 Patented Apr. 16, L1935 n UNITED STATES PATENT OFFICE 1,998,370 DOOR'OPERATING MECHANISM Victor 0. Keys, Lexington, Ky. Application September 15, 1934, Serial No. 744,211

5 claims. (c1. 268-462) f This invention relates to a door operating mechanism, and it is primarily an object of the invention to provide a mechanism of this kind for use in connection with garage doors and whereby /5 such doors may be readily and conveniently opened or closed by an occupant of the vehicle.

Another object of the invention is to provide a mechanism of this kind whereby the doors'when closedare electively held in such position,

'Theinvention also has for an object to provide a mechanism of thiskind wherein the operation thereof is under control of a swingingleverextending a desired distance exteriorly of the building structure.

The invention consistsin the details of construction and in the combination and arrangement of the several parts of ymy improved door operating mechanism whereby certain important n advantages are attained and the device rendered simpler, less expensive and otherwise moreconvenientand advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed. 25 rIn order that my invention may be the better understood, I will now proceed to ydescribe the same with reference to the accompanying drawings, wherein:-

Figure 1 is a view partlyk in top yplan and partly in section illustrating a door operating mechanism constructed in accordance lwith an `embodiment of my invention, the line of section being substantially on the'line I--I of Figure 2, with portions omitted; n Figure 2 is a vertical sectional view taken substantially on the line 2--2 of Figure l;

Figure 3 is a fragmentary detailed sectional view taken substantiallyk on the line 3--3 of Figure 2, looking in the direction of the arrow;

Figure 4 is an enlarged fragmentary sectional view taken substantially on the line 4-4 of Figure 1;

Figure 5 is a sectional view taken substantially on the line 5-5 of Figure 1.

In the accompanying drawings, B denotes a building structure of a type particularly designed for use as a garage and which includes a pair of outwardly swinging doors D associated with the entrance to the structure. These doors are hung in a manner to swing inwardly one toward the other as is clearly illustrated in the accompanying drawings.

The wall of the structure B provided with the entrance opening has supported above such ening provided centrally of said opening and having'secured thereto the forward end portions of the parallel tracks 2 Aextending inwardly of the structure B a required distance. The tracks 2 provide a support fork a sliding head 3 which has movement toward or from the entrance and the forward marginal yportion of said slide 3 is provided in a direction thereacross with the spaced openingsr `4.

These openings dpermit an adjustable pivotal connection to the slide 3 With respect to its transverse center of the inner end portions of the elongated rigid inembersor rods y5. The outer end portions of these rods 5 are pivotally connected,

'as at 6, to the doors D. By this means as the slide 3 is moved outwardly along the guides or trackways 2 the doors D will be throwninto open position and vice versa. While of course the extentof'opening movement of the doors D will be mainly dependent upo'n the extent of movement of theslide 3, it is believed to be apparent that such opening movement can be further regulated or controlled by adjusting the pivotal connection yof the members orrods 5 with theslide 3 as permitted by the openings 4 hereinbefore referred to.

The rear portion of the slide 3 at its transverse center carries a bracket l with which is pivotally connected a pitman or push rod 8. This pitman or rod 8 in turn is operatively connected with a crank 9 comprised in the shaft Ill.r This shaft .21

I0 is rotatably supported within the building structure B at a preferred location and the throw of the crank 9' will determine the maximum extent of opening the doors D.

pivotally connected, as at' I5, with the inner end portion of an elongated operating member or lever L. This lever L extends exteriorly ofthe building structure B through a suitably positioned opening I4 and at a desired point intermediate its ends the lever L is supported, as at I5, for rocking movement in a yvertical direction.

The outer or exterior end portion of the lever i L has operatively engaged therewith a pull rod` I6 which may be readily grasped by an occupant of the vehicle to operate the lever L to throw open or closed thedoors D. Upon pull on the member I6 the inner end portion of the lever L will swing upwardly resulting in an outward movement of the slide 3 with the desired opening of the doors D. While of course upward push upon the rod or member I6 will result in a closing of the doors.

The inserted end portions of the lever L is continued by an upwardly and rearwardly disposed arm il provided at its free extremity with an undercut recess or notch i8. The arm il is of such formation and the notch or recess l@ is so positioned that as the inner end portion of the lever L is swung downwardly to close the doors, the notch or recess i8 will engage over an outstanding lug or iiange I9 carried by the shaft l0 just as the doors D are fully closed. This engagement serves to effectively hold the doors when closed against accidental opening.

From the foregoing description it is thought to be obvious that a door operating mechanism constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modication without departing from the principles and spirit thereof and for this reason I do not wish to be understood as linnting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.

I claimtl. An operating mechanism for a door coniprising a slide, means for supporting the slide for movement in substantially a iixed path of travel, door engaging means connected to the slide, a shaft having a plurality of cranks, a pitinan interposed between and connected to the slide and one of the cranks, a lever, means engaged with the lever intermediate its length for supporting the lever for rocking movement, an operative connection between one end portion of the lever and the second crank of the shaft, and coacting means carried by the lever and the shaft for holding the shaft against rotation when the slide is at the limit of its closing movement.

2. An operating mechanism for al door comprising a slide, means for supporting the slide for movement in substantially a fixed path of travel, door engaging means connected to the slide, a shaft having a plurality of cranks, a pitman interposed between and connected to the slide and one of the cranks, alever, means engaged with the lever intermediate its length for supporting the lever for rocking movement, an operative connection between one end portion of the lever and the second crank of the shaft, a lug carried by the shaft, an arm carried by the lever having a recess to receive the lug of the shaft when the lever has been moved in a directon to impose closing movement to the slide.

3. An operating mechanism for a door comprising a slide, means for supporting the slide for movement in substantially a xed path of travel, door engaging means connected to the slide, ashaft having a plurality of cranks, a pitman interposed between and connected to the slide and one oi the cranks, a lever, means engaged with the lever intermediate its length for supporting the lever for rocking movement, an operative connection between one end portion of the lever and the second crank of the shaft, a

lug carried by the shaft, and an arm carried by the lever having a recess to receive the lug of the shaft when the lever has been moved in a direction to impose closing movement to the slide, said arm being angularly disposed with respect to the adjacent end portion of the lever.

Ll. An operating mechanism for a door comprising a slide, means for supporting the slide for movement in substantially a fixed path of travel, door engaging means connected to the slide, a shaft, a pitman operatively connected to the slide and to the shaft for imparting endwise movement to the slide upon rotation of the shaft, a rock lever, an operative connection between the lever and the shaft for rotating the shaft upon rocking the lever, and coacting means carf ried by the lever and the shaft for holding the shaft against rotation when the slide is at the limit of its closing movement.

5. An operating mechanism for a door comprising a slide, means for supporting the slide for movement in substantially a fixed path of travel, door engaging means connected to the slide, a shaft, a pitman operatively connected to the slide and to the shaft for imparting endwise movement to the slide upon rotation of the shaft, a rock lever, an operative connection between the lever and the shaft for rotating the shaft upon rocking the lever, a lug carried by the shaft, and an arm carried by the lever having a recess to receive the lug of the shaft aftenthe lever has been rocked. g

VICTOR O. KEYS. 

